Ubuntu: ./AAMED OpenCV 3.1 "Assertion failed", core dumped

[drscotthawley]

Hi. Thanks for sharing your software and writing instructions. I was wondering if you could advise me of an error that occurs when I try to execute AAMED.

On my Ubuntu system, I installed and built OpenCV 3.1.0 in ~/opencv-3.1.0/, which built to 100%.
Then I set my environment variable OpenCV_DIR to point to the build/ directory for OpenCV.
Then downloaded & built AAMED. But when I try to run it I get a failed assertion. Log follows:

$ git clone https://github.com/Li-Zhaoxi/AAMED.git
Cloning into 'AAMED'...
remote: Enumerating objects: 240, done.
remote: Counting objects: 100% (240/240), done.
remote: Compressing objects: 100% (177/177), done.
remote: Total 240 (delta 86), reused 209 (delta 59), pack-reused 0
Receiving objects: 100% (240/240), 1.04 MiB | 4.58 MiB/s, done.
Resolving deltas: 100% (86/86), done.

$ cd AAMED/cmake-build

$ cmake ..
-- The C compiler identification is GNU 10.2.0
-- The CXX compiler identification is GNU 10.2.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/shawley/Downloads/AAMED/cmake-build

$ make 
make[1]: Entering directory '/home/shawley/Downloads/AAMED/cmake-build'
make[2]: Entering directory '/home/shawley/Downloads/AAMED/cmake-build'
Scanning dependencies of target AAMED
make[2]: Leaving directory '/home/shawley/Downloads/AAMED/cmake-build'
make[2]: Entering directory '/home/shawley/Downloads/AAMED/cmake-build'
[  6%] Building CXX object CMakeFiles/AAMED.dir/src/main.cpp.o
[ 13%] Building CXX object CMakeFiles/AAMED.dir/src/adaptApproximateContours.cpp.o
[ 20%] Building CXX object CMakeFiles/AAMED.dir/src/adaptApproxPolyDP.cpp.o
[ 26%] Building CXX object CMakeFiles/AAMED.dir/src/Contours.cpp.o
[ 33%] Building CXX object CMakeFiles/AAMED.dir/src/EllipseNonMaximumSuppression.cpp.o
[ 40%] Building CXX object CMakeFiles/AAMED.dir/src/FLED.cpp.o
[ 46%] Building CXX object CMakeFiles/AAMED.dir/src/FLED_drawAndWriteFunctions.cpp.o
/home/shawley/Downloads/AAMED/src/FLED_drawAndWriteFunctions.cpp: In member function ‘void FLED::drawFSA_ArcContours()’:
/home/shawley/Downloads/AAMED/src/FLED_drawAndWriteFunctions.cpp:153:22: warning: ‘__builtin___sprintf_chk’ may write a terminating nul past the end of the destination [-Wformat-overflow=]
  153 |   sprintf(arcnum, "%d", i);
      |                      ^
In file included from /usr/include/stdio.h:866,
                 from /usr/include/c++/10/cstdio:42,
                 from /usr/include/c++/10/ext/string_conversions.h:43,
                 from /usr/include/c++/10/bits/basic_string.h:6535,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from /home/shawley/Downloads/AAMED/src/FLED.h:3,
                 from /home/shawley/Downloads/AAMED/src/FLED_drawAndWriteFunctions.cpp:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:38:34: note: ‘__builtin___sprintf_chk’ output between 2 and 11 bytes into a destination of size 10
   38 |   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
      |          ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   39 |       __bos (__s), __fmt, __va_arg_pack ());
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 53%] Building CXX object CMakeFiles/AAMED.dir/src/FLED_PrivateFunctions.cpp.o
[ 60%] Building CXX object CMakeFiles/AAMED.dir/src/Group.cpp.o
[ 66%] Building CXX object CMakeFiles/AAMED.dir/src/LinkMatrix.cpp.o
[ 73%] Building CXX object CMakeFiles/AAMED.dir/src/Node_FC.cpp.o
[ 80%] Building CXX object CMakeFiles/AAMED.dir/src/Segmentation.cpp.o
[ 86%] Building CXX object CMakeFiles/AAMED.dir/src/Validation.cpp.o
[ 93%] Building CXX object CMakeFiles/AAMED.dir/src/FLED_Initialization.cpp.o
[100%] Linking CXX executable AAMED
make[2]: Leaving directory '/home/shawley/Downloads/AAMED/cmake-build'
[100%] Built target AAMED
make[1]: Leaving directory '/home/shawley/Downloads/AAMED/cmake-build'

$ ./AAMED 
OpenCV Error: Assertion failed (scn == 3 || scn == 4) in ipp_cvtColor, file /home/shawley/opencv-3.1.0/modules/imgproc/src/color.cpp, line 7456
terminate called after throwing an instance of 'cv::Exception'
  what():  /home/shawley/opencv-3.1.0/modules/imgproc/src/color.cpp:7456: error: (-215) scn == 3 || scn == 4 in function ipp_cvtColor

Aborted (core dumped)

Any suggestions on how to recover from this? Thanks.

(P.S.- The only binaries for opencv-dev for my Ubuntu 20.10 system is OpenCV 4. So to get version 3.1 instead, I had to build it from source.)

[Li-Zhaoxi]

@drscotthawley

this error indicates that the function cvtColor cannot convert image from rgb to gray, please check whether the image mentioned in main.cpp exist.